Good rules of thumb is... For fast moving objects, unless you want to capture the blur, you may want to have a fast shutter speed and wider lens opening (lower aperture)... but it will decrease the deapth of field...
For slower/still objects, and where you need a higher depth of field, slower shutter speed and narrower lens opening (higher aperture) setting might be good, although you will need to make sure you are not shaking the camera too much. Tripod?
|